It shuts down windows and any software you are running, but Windows boots back up. Make sure you have Zonealarm running at all times, the reason for which is detailed below.
FYI even if you had installed a previous version, it pulls the reg data from an encrypted file somwhere hidden away on your drive.
I tested 3 times using different names and serials which contained nice long names and it shut down each time. When my system booted up, zonealarm popped up as this program wanted to access the web to pass my previous details on from the older version! Figure that one out.
My advice would be to wait until someone can kill this routine and stop it in it's tracks. The use of a Boolean variable(can be true or false only) regardless whats entered the flag will always be set as 1=valid. But who really knows for there could be 4/5 JSR's which all do a self check to see if they have been tampered with!!
On a legal basis an individual who bought the software and then entered a wrong no or letter by mistake and at that time was producing a legal document etc. and then their system shut down and all work was lost, then iolo would be in deep water.
My mission to help others and give a good warning about the methods being used and in which software. Remember though this software does have a 30 day trial.